Experimental investigation on reducing diesel particulate matter using centrifugal fluidised chamber

ABSTRACT

Centrifugal fluidisation with static geometry, which is a new way of fluidisation, is still not getting the attention of engine researchers for reducing the PM from diesel exhaust. In the present work, centrifugal fluidisation with static geometry is used as an after-treatment method to reduce the PM from diesel exhaust. The centrifugal fluidised chamber with SiC particles was tested on air and diesel exhaust. Experimental results show that an increase in bed stability with an increase in inlets was responsible for improving chamber efficiency for 3 and 4 inlet chambers. The number of inlets, inlet slot width and the mass of a bed particle affect the fluidisation inside the chamber. For single-cylinder diesel engines, 3 and 4 inlet chambers show the potential to remove PM with maximum chamber efficiency close to 60%. The accumulation of bed particles is the main reason for the dropping of the chamber efficiency with time.

KEYWORDS:

• Diesel PM
• fluidisation
• smoke opacity
• rotary fluidised chamber
• filtration
• SiC

Disclosure statement

No potential conflict of interest was reported by the author(s).